Fixed exceptions and added constraints to commands

MycroForge.CLI/Commands/Attributes/RequiresFeatureAttribute.cs

@@ -0,0 +1,17 @@
+namespace MycroForge.CLI.Commands.Attributes;
+
+public class RequiresFeatureAttribute : Attribute
+{
+    public string FeatureName { get; }
+
+    public RequiresFeatureAttribute(string featureName)
+    {
+        FeatureName = featureName;
+    }
+
+    public void RequireFeature(string command)
+    {
+        if (!Directory.Exists(Path.Join(Environment.CurrentDirectory, FeatureName)))
+            throw new($"Command '{command}' requires feature {FeatureName}");
+    }
+}

MycroForge.CLI/Commands/Attributes/RequiresFileAttribute.cs

@@ -0,0 +1,17 @@
+namespace MycroForge.CLI.Commands.Attributes;
+
+public class RequiresFileAttribute : Attribute
+{
+    public string FilePath { get; }
+
+    public RequiresFileAttribute(string filePath)
+    {
+        FilePath = filePath;
+    }
+
+    public void RequireFile(string command)
+    {
+        if (!File.Exists(Path.Join(Environment.CurrentDirectory, FilePath)))
+            throw new($"Command '{command}' requires file {FilePath}");
+    }
+}

MycroForge.CLI/Commands/Attributes/RequiresPluginAttribute.cs

@@ -0,0 +1,24 @@
+using Microsoft.Extensions.FileSystemGlobbing;
+using Microsoft.Extensions.FileSystemGlobbing.Abstractions;
+
+namespace MycroForge.CLI.Commands.Attributes;
+
+public class RequiresPluginAttribute : Attribute
+{
+    public void RequirePluginProject(string command)
+    {
+        var matcher = new Matcher()
+            .AddInclude("*.csproj")
+            .Execute(new DirectoryInfoWrapper(new DirectoryInfo(Environment.CurrentDirectory)));
+
+        if (!matcher.HasMatches)
+            throw new($"Command '{command}' must be run in a command plugin project.");
+
+        var csprojFileName = $"{Path.GetDirectoryName(Environment.CurrentDirectory)}.csproj";
+        bool IsCsprojFile(FilePatternMatch file) => Path.GetFileNameWithoutExtension(file.Path).Equals(csprojFileName);
+        var hasCsprojFile = matcher.Files.Any(IsCsprojFile);
+
+        if (!hasCsprojFile)
+            throw new($"File '{csprojFileName}' was not found, make sure you're in a command plugin project.");
+    }
+}

MycroForge.CLI/Commands/MycroForge.Api.cs

@@ -1,13 +1,15 @@
 using System.CommandLine;
+using MycroForge.CLI.Commands.Attributes;
 using MycroForge.Core.Contract;
 
 namespace MycroForge.CLI.Commands;
 
 public partial class MycroForge
 {
+    [RequiresFeature(Features.Api.FeatureName)]
     public partial class Api : Command, ISubCommandOf<MycroForge>
     {
-        public Api(IEnumerable<ISubCommandOf<Api>> commands) :
+        public Api(IEnumerable<ISubCommandOf<Api>> commands) : 
             base("api", "API related commands")
         {
             foreach (var command in commands)

MycroForge.CLI/Commands/MycroForge.Db.cs

@@ -1,10 +1,12 @@
 using System.CommandLine;
+using MycroForge.CLI.Commands.Attributes;
 using MycroForge.Core.Contract;
 
 namespace MycroForge.CLI.Commands;
 
 public partial class MycroForge
 {
+    [RequiresFeature(Features.Db.FeatureName)]
     public partial class Db : Command, ISubCommandOf<MycroForge>
     {
         public Db(IEnumerable<ISubCommandOf<Db>> commands)

MycroForge.CLI/Commands/MycroForge.Hydrate.cs

@@ -1,4 +1,5 @@
 using System.CommandLine;
+using MycroForge.CLI.Commands.Attributes;
 using MycroForge.Core;
 using MycroForge.Core.Contract;
 
@@ -6,11 +7,12 @@ namespace MycroForge.CLI.Commands;
 
 public partial class MycroForge
 {
+    [RequiresFile("requirements.txt")]
     public class Hydrate : Command, ISubCommandOf<MycroForge>
     {
         private readonly ProjectContext _context;
-            
-        public Hydrate(ProjectContext context) 
+
+        public Hydrate(ProjectContext context)
             : base("hydrate", "Initialize venv and install dependencies from requirements.txt")
         {
             _context = context;

MycroForge.CLI/Commands/MycroForge.Install.cs

@@ -28,7 +28,7 @@ public partial class MycroForge
 
             if (packs.Length == 0)
             {
-                Console.WriteLine("m4g install requires at least one package.");
+                Console.WriteLine("'m4g install' requires at least one package.");
                 return;
             }
 

MycroForge.CLI/Commands/MycroForge.Plugin.Install.cs

@@ -2,6 +2,7 @@
 using Humanizer;
 using Microsoft.Extensions.FileSystemGlobbing;
 using Microsoft.Extensions.FileSystemGlobbing.Abstractions;
+using MycroForge.CLI.Commands.Attributes;
 using MycroForge.Core;
 using MycroForge.Core.Contract;
 
@@ -11,6 +12,7 @@ public partial class MycroForge
 {
     public partial class Plugin
     {
+        [RequiresPlugin]
         public class Install : Command, ISubCommandOf<Plugin>
         {
             public enum TargetPlatform

MycroForge.CLI/Commands/MycroForge.Uninstall.cs

@@ -27,9 +27,17 @@ public partial class MycroForge
 
         private async Task ExecuteAsync(IEnumerable<string> packages, bool yes)
         {
+            var packs = packages.ToArray();
+
+            if (packs.Length == 0)
+            {
+                Console.WriteLine("'m4g uninstall' requires at least one package.");
+                return;
+            }
+            
             await _context.Bash(
                 "source .venv/bin/activate",
-                $"pip uninstall{(yes ? " --yes " : " ")}{string.Join(' ', packages)}",
+                $"pip uninstall{(yes ? " --yes " : " ")}{string.Join(' ', packs)}",
                 "pip freeze > requirements.txt"
             );
         }